Knowledgebase
Sad Apple Tree #752316
Asked May 26, 2021, 2:54 PM EDT
Hennepin County Minnesota
Expert Response
The following website gives three causes of rolled leaves, leaf rollers and powdery mildew. Another cause is herbicide drift.
Did you or a neighbor use a herbicide on a windy day? The cupped pattern of these leaves suggests that is the problem. If new leaves come out okay you will know this is the cause. Also did any of the Hosta show a cupped pattern? Keep the tree well watered.
The website gives suggestions on what to look for and treatments.
See: http://apps.extension.umn.edu/garden/diagnose/plant/fruit/apple/leavesrolled.html
Another potential or actual problem is at the lower trunk area. There appears to be black plastic almost next to the trunk and the mulch is touching the trunk. There may also be damage to the trunk. Mulch should not touch the tree because it provides a place for pests to hide and nibble on the trunk. Mulch should 6-8” away from the trunk. The plastic and pavers may also be limiting how much water is available to the tree. You may need to water more than usual given this situation.
Linnea Maas
InsideTheRobot.com
<personal data hidden>
On May 29, 2021, at 8:00 AM, Ask Extension <<personal data hidden>> wrote:
We do not recommend particular arborists but the following website does have ideas on what to look for and how to reach them. See: https://extension.umn.edu/planting-and-growing-guides/how-hire-tree-care-professional
Mary,
Thank you so much for the link. We will pursue it for further advice.
Appreciate your time on our issue!
Linnea Maas
952.239.0110
InsideTheRobot.com
From: Ask Extension
Sent: Friday, June 4, 2021 8:35 PM
To: Linnea Marie Maas
Cc: Linnea Maas
Subject: Re: Sad Apple Tree (#0022247)
You are welcome. Good luck with your tree.